Ring spinning machine



June 7, 1932. OERTEL 1,862,030

RING SPINNING MACHINE Filed June 15, 1929 INVENTOR ATT'ORNEY ies - Y STA;

[jUNr Pik Tr F rnenz OER-TEL, or ennmnonAnLorrnnBUne, ennnanmnssienon To WESTING- HOUSE nrnorarc & MANUFACTURING COMPANY, A. conronArron or rnnNsY -I VANIA RING, srrmvme Maonrnn Application filed June 13,1929, Serial no. 370,527, and in Germany June 16. 1928.

My invention relates to improvements in ring spinning machines, in which a thread is spun and woundupon a bobbinin the customary manner.

My invention consists'of 'means forcontrolling the speed ofthe electricdriving motor of a spinning machine which, when commenclng to wlnd, must run at an mcreas ing speed, when winding, at a constant speed,

' 7 and, when the working process is finished, at

a slowly decreasing speed, whereby, accord mg to whether ;the thread is wound on a small or a large diameter of the bobbin, the,

speed of the motor and the spindle must slightly vary within this slow increase of the speed, the: constant speed and the slow decrease-of the speed, in orderto equalize the different winding speeds, which are caused bythe varying diameters .during'the' winding, according to whether the thread is Wound inside or outside onfthe bobbin.

In practicing my invention, I provide a variable speed motor adjacent to the spinning machine head. Thespeed regulation of the motor is effected by a controller. This controller is, according to my invention, connected to a chain wheel or sheave mounted on the usual builder or swingarm by means ofa flexible Connection, such as a cord, wire or chain. This connection is. controlled by means fully described hereinafter. V i

Further objects of my invention will appear as the specification proceeds,

An embodiment of myinvention is illus ".5 trated in the accompanying drawing in Fig. 1 1s a view, in front elevation, and F g. 2 1s a view, in side elevation, of my improved spinning machine.

Fig. 3 diagrammatically illustrates the mode of operation of my improved machine,

and e attain the changes in the speeds necessary whenpassing'from one count, of yarn orjone raw materialto another without exchanging cams, wheels or theilikeq There, are already known spinning controllers in-lwhich the regulation of the layers for building the bobbin is directly derived from the builder orswing arm. A flexible connecting member is: here employed, which extends from the builder arm to thebrush-adjusting lever and:

is kept taut by the brush-retracting spring.

The regulation of the variations from the" fundamental speed then takes place in de:

pendence upon the position of the builder arm.

In order to bring about a regulation of the layers also when commencing to windand l when running the yarnoif the bobbin when the'bobbin building isfinished, the flexible i L f connection extending to the brush-adjusting device is, according to my invention, .de-

flected'by a special pullmemben This pull i member iscontrolled bya crank which, in its turn, is controlled by thering-rail operating gear. In order to avoid reduction gears, the sheave or. chain wheel mounted ontheswing or builder arm is preferably employed for transmitting the movement of the crank.

' Referring to Figs. 1 and 2 ofthe drawing, 1Q is the head of the spinning machine and 11 the electric driving motorequipped with the brush-shiftingdevice 12. On the builder or swing arm 13 is mounted a sheave 14.

- From a stationary point on the builderarm a 'cord i15 extends to a cord grip l6 and over two guide pulleys. 17 to the brush-shifting le-. I

ver of, the motor. The. brush, retracting spring 18 holds thecord, 15 taut If the builder, arm or swing lever 13-traversesthe stroke height 72,, (Fig. and the cord 15 is stretched, the total layer regulation 3 (Fig.

4:), required for the main spinning s pro.-

duced. The upper position of the swing arm 7 1" corresponds'to the maximum speed of the motonend the lower position to the minimum speed.

.For the; customary- 'bobbin Winding ,method, the speed rises quickly and the drop in the speed takesplace slowly. To enable. V

the peaks in thel'ayercurveto beoutoii as desired, an adjustable stop 19 is provided on the motor frame, which limits the movement ofthe cord 15.

In Order to change the fundamentalspeed and the amount of the layer regulation when commencing the bobbin building and when running-off the yarn when the bobbin is finished, in the manner shown in Fig-40f the drawing, the cord- 15 is deflected, from its straight path. As shown .in -8 of the drawing, the deflection of the cord may take place down to the point 6, so that the layer regulation then practically disappears altogether. This corresponds to the starting point e of the regulation curve in Fig.

V of the drawing; I a

The cord 15 may be deflected by'a ccrd or cable or by a corresponding lever,one end ofwhich is secured thereto and the other end sheave 22. The chain 23 is released by the sheave l lmounted on the swing arm step-' of which is secured to a crank21. The crank 21 is rigidly fastened to the 'sheave22 and. is provided with a-slot foradjustablyconnecting the end of the cable20. The sheave 22" is connected to the sheave 14 by a'chain23.- The cable 20 and the crank21 can thus follow the pull in the direction of the arrowfco the eX- tentzonly in which the, chain'23 releases the wise during each stroke by a shortdistance only. Thisis effected by'theoperating mecha anism which lifts the ring-rail. .The variation of the fundamental speed thus takes a 5 1 place according to the size of the cord-defleeting angle in "dependenceupon the position ofthe crank 21.

. of a straight line, in a given'plane, extend ng from the points of tangency of chain 23 to. sheave 14, whenin the two: extreme 01)? sheave 22. .50

having the speedof the motor periodically" and materially varied by the oscillations of The disposition of the elements of m invention is suchthat the lever arm'21rrema1ns substantially motionless during the normal stroke of the build-er arm. This result follows because the sheave 14 is so disposed with reference to sheave 22 that "a straight line drawn perpendicularly to the mid-point crating positions shown, is-tangent to sheave 22, at a point vertically above the axis of 7 Furthermore, to prevent the possibility of V the builder arm 13, when the lever 21 is in the broken-line. position, the dimensions and disposition of. the elements of my invention are so chosen, that a straight line draiwnpen 1 pendicular tothe xni-d -point'of a straight line, in a given plane, extending between the uses of sheave 14,"when inthe two extreme operating positions shown, passes through point e.

In ring spinning machines, it is customary to. drive the sheaveorsprocket iwheelle in such manner that, according to the height of the bobbin, it performs not morethan one sition. I y r I It is thus obviousthat, by means of the shape of the regulation curve.

revolution. Preferably, the diameter of the sheave 22 and the operative length of the crank 21 are so chosen that the crank pin requires not more than a quartervof a circle to deflect the cord 15 from thestra-ight posiriod of the bobbin consequently amounts to about a quarter of the entire winding period.

WVhen thestretched position of the cord 15 has been reached, the cable 20 loses its :tension by the progress of, vthee-rank movement and action upon the layer regulation until the point of attachment of the" chain 23 has travelled around the sheave 14 'andhas entered into the last quarter of its revolution. The deflection ofthe cord 15 then starts anew to efiect the desired drop of fundamental speed and-layer regulation for the runningelf. period. VVhen, after the drawing off is r finished, the ring-rail-is loweredby means of the handle, the chain-attaching'point on the sheave l'also returns to its initial pomechanism embodying my invention, it is .tion down to the point e. At this point,

' commences the winding of the thread on the bobbin. With such construction ofthe drivings parts, the-duration of the startingppeeasilypossible'to effect the variations of the regulation curve required in practice bysim' ple manipulations and without changing any is obtained. By varying the radiusor the angle of the crank 21, and by adjusting the stop 19,- a variation maybe attained-in the steepness of the pitch of the wi11ding',1the

duration of the starting period, the. fundamental speed, and the size, as Well as the My improved mechanism is distinguished by great simplicity, mayjquickly and inexpensively be manufactured and mounted and,

parts. 'Thesevariations -may'-be produced by-displacingtheropegrip or clamp 16 con- 'necting the" two cords orkcables 15Land- 20,

wherebyja change in the proportionsof the cord 15 and in the length ofthe cable .201

above all, can easily be attended to and:

adjusted. i 7

' Various modifications and changes may be made withoutdeparting'from the spirit and the scope of the inventiomandl desire, therei fore, that only such limitations shall f be. placed thereon as are'imiposed by the prior art. e g V I claim as my invention: I v

1. In aringspinning machine, in combina' tion, a drivinginotor, a speed-controlling devicefor said motor, a builder arm, a: transondtransmitting member secured at one end to said crank and at the other end to the transmitting member that extends from said builder arm to said motor-speed-controlling device.

2. In a ring spinning machine, in combination, a driving motor, a speed-controlling device for said motor, a builder arm,-a transmitting member secured at one end to said builder arm and at the other end to said motor-speed-controlling device, a rotatable sheave mounted on said builder arm, a second rotatable sheave, a crank rigidly secured to the second sheave, a chain connecting said sheaves, thev axis of rotation of the second sheave being so located that a line perpendicular to the path of movement of the builder armat its midpoint is tangent to said sheave, a member for transmitting the motion of the first named sheave to said crank, and a second transmitting member secured, at one end, to said crank and, at the other end, to the transmitting member which connects the builder arm to the motor-speed-controh ling device. V V

3. In a ring spinning machine, in combination, a motor, a speed-controlling device for the motor, a builder arm, a sheave on the builder arm, a flexible transmitting member connected, at one end, to a fixed point on the builder arm and, at the other end, to the speed-controlling device, deflecting means for the transmitting member including a sheave having a crank and connecting means between the sheave. on the builder arm and the sheave otthe deflecting means for controlling the deflection of, the transmitting member by the operation ofthe sheave on the builder arm.

4. In a ring spinning machine, in combination, a motor, a speed-controlling device for the motor, a builder arm,.a rotatable member on the builder arm, a flexible transmitting member connected, at one end, to a fixed point on the builder arm and, at the other end, to the speed-controlling device, deflecting means for the. flexible transmitting member for further controlling the speed of the motor, said means including arotatable sheave, a crank fixed to the sheave, connect? mitting cable adjustably secured, at one end, .tosaid builder arm and, at the other end, to

ing means intermediate the crank and the flexible transmitting member, said connecting means being adjustable with reference to the crank, and a connecting member between the sheave and the rotatable member on the builder arm, thereby controlling the deflecting means by the position of said rotatable member.

5. In a ring spinning machine, in combination, a driving motor, a speed-controlling device for said motor, a builder arm, a transsaid motor-speed-controlling device, adjustable m-eans for controllingthe efiective length of said transmitting cable and meansfor limiting the movement of said transmitting tion, a driving motor, a speed-controlling device for the motor, a builder arm,' a transmitting cable secured, at one end, to the builder arm and, at the'other end, to the speed-controlling device for the motor, 'means controlled by the operation of the builder arm for variably deflecting the transmitting cable to thereby variably control the longitudinal movement of the transmitting cable, means for adjusting the effective length of the cable, and further means for limiting the deflecting movement of the transmitting ,member to thereby cause adecrease of the speed of the motor. I I

7. In a ring spinning machine, in combination, a driving motor,a speed controlling device for saidmotor, a builder arm, a trans mitting cableadjustably secured, at one end,

ling device, means for adjusting the effective j length of said cable and means for limiting the movement of saidcable.

In testimony whereof, I have hereunto sub scribed my name this 29th day of May,1929,'

at Berlin-Siemensstadt, Germany.

FRANZ OERTEL. 

